Multiple Limit Switch VB CSM_VB_DS_E_1_1 A New Monoblock Multiple Limit Switch Incorporating a Head Box with a Tough Head and Ensuring High Sealing Performance and a Mechanical Durability of 5,000,000 Operations • Used for the sequential control of a variety of engineering machines and belt conveyor lines. • Built-in oil filter shuts out oil and water. • Approved by EN, IEC (Ground terminal models only.) and CCC (Chinese standard). Ask your OMRON representative for information on approved models. • Ground terminal models bear the CE mark. Be sure to read the “Safety Precautions” on page 4 and the “Precautions for All Limit Switches”. Model Number Structure Ordering Information Model Number Legend List of Models Shape of box VB-@@@@@@ With flange Without flange 1 2 3 4 5 6 1. Number of Plungers 2: 2 plungers 3: 3 plungers 4: 4 plungers 5: 5 plungers 6: 6 plungers Actuator * Two on the side 2. Actuator 1: Bevel plunger 2: Roller plunger 3. Switch Box 1: Flange switch box with two conduit holes on the side 2: Flange switch box with four conduit holes 4: Non-flange switch box with two conduit holes on the side 5: Non-flange switch box with four conduit holes Conduit Roller plunger (with a 6.8-dia. roller) Four Bevel plunger Two on the side 4. Scraper 1: NBR scraper 2: FPM scraper Model VB-2211 VB-2241 VB-3211 VB-3241 VB-4211 VB-4241 VB-5211 VB-5241 VB-6211 VB-6241 VB-2221 VB-2251 VB-3221 VB-3251 VB-4221 VB-4251 VB-5221 VB-5251 VB-6221 VB-6251 VB-2111 VB-2141 VB-3111 VB-3141 VB-4111 VB-4141 VB-5111 VB-5141 VB-6111 5. Contact None: 10 A (standard) A: 0.1 A (micro load) Four 6. Ground Terminal None: Without ground terminal E: With ground terminal --- VB-2121 VB-2151 VB-3121 VB-3151 VB-4121 VB-4151 VB-5121 --- VB-6121 --- Note: 1. Other than the above models, minute load models switching 0.1 A are available. When ordering a minute load model, add the suffix A to the model number (i.e., VB-2211A for example). 2. SC connectors can be connected to VB models. 3. Models with ground terminals are also available. When ordering a ground terminal model, add the suffix E to the model number (i.e., VB-2211E for example). * Since the actuator is incorporated into the monoblock switch, the actuator cannot be replaced. Replaceable Switch Unit Rating Standard load model Model VB-S101N 1 VB Specifications Approved Standards Agency TÜV Rheinland CCC (CQC) Standards Characteristics File No. Approved models EN60947-5-1 J50062491 (IEC947-5-1) Only models with ground terminals GB14048.5 Ask your OMRON representative for information on approved models. 2003010305077628 Degree of protection Durability * IP67 Mechanical 5,000,000 operations min. Electrical 300,000 operations min. (10 A at 250 VAC, resistive load) Operating speed Operating frequency 0.1 mm to 0.5 m/s Mechanical 120 operations min. Electrical 30 operations min. Ratings Rated frequency 50/60 Hz (AC) Standard Model Insulation resistance 100 MΩ min. (at 500 VDC) Contact resistance Resistive load Rated voltage NC NO 125 VAC 250 VAC 10 A 10 A 125 VDC 250 VDC 0.6 A 0.3 A Dielectric strength Note: The above currents are steady-state currents. Inrush current NC 24 A max. NO 24 A max. Micro Load Ratings Rated voltage Resistive load 125 VAC 0.1 A 8 VDC 30 VDC 15 mΩ max. (initial value) Between terminals of same polarity 1,000 VAC/Uimp 4,000 VAC Between currentcarrying metal parts and ground 1,500 VAC/Uimp 4,000 VAC Between each terminal and noncurrent-carrying metal part 1,500 VAC/Uimp 4,000 VAC Between terminals of different polarity Uimp 4 kV (EN60947-5-1) Rated insulation voltage (Ui) 300 VAC (EN60947-5-1) Switching overvoltage 1,000 V max. (EN60947-5-1) Pollution degree (operating environment) 3 (EN60947-5-1) Short-circuit protective device (SCPD) 10 A fuse type gG or gI (IEC269) Approved Standard Ratings Conditional short-circuit current 100 A (EN60947-5-1) TÜV (EN60947-5-1) (Grand terminal models only) Standard Model Conventional enclosed thermal current (Ithe) 5 A, 0.5 A (EN60947-5-1) Protection against electric shock Insulation class I (Use the grounding terminal or ground on the machine side.) Vibration resistance Malfunction 10 to 55 Hz, 1.5-mm double amplitude Destruction 1,000 m/s2 min. Malfunction 200 m/s2 min. AC-15 DC-15 2A 2A Rated operating voltage (Ue) 250 V 48 V Micro Load Model Applicable category AC-14 DC-15 Rated operating current (Ie) 0.1 A 0.1 A Rated operating voltage (Ue) 125 V 30 V CCC (GB14048.5) Applicable category and ratings AC-15 2 A/250 VAC Shock resistance Ambient operating temperature –10°C to 80°C (with no icing) Ambient operating humidity 35% to 95% Weight Approx. 580 g (in the case of VB-4211) Note: The above values are initial values. * The values are calculated at an operating temperature of 5°C to 35°C, and an operating humidity of 40% to 70%. Contact your OMRON sales representative for more detailed information on other operating environments. Engineering Data Electrical Durability (with more than 300,000 Operations) (Ambient temperature: 5°C to 35°C; Ambient humidity: 40% to 70%) 1,000 700 500 Durability (x 104 operations) Applicable category Rated operating current (Ie) Operating frequency: 30 operations/min 250 VAC, cosφ = 1 300 200 100 70 50 30 10 0 0.5 1 2 3 4 5 6 7 8 9 10 11 12 Switching current (A) 2 VB Structure and Nomenclature Structure (VB-2211) Contact Form Plunger COM Scraper NC NO Position of conduit • Two on the side ....A and B • Four .......................A, B, and C A Box C Cover Seal, gasket Switch assembly B Dimensions and Operating Characteristics (Unit: mm) Switches The actual model numbers of each of the above VB models have a figure 2 to 6, which indicate the number of plungers. Bevel Plunger [email protected] Bevel Plunger [email protected] Cable drawing hole with 3 threads min. (G1/2) Two, 6+0.1-dia. holes for positioning FP OP Four, 6.5 dia. holes Two screw caps PT 8-dia. hard stainless steel plunger Cable drawing hole with 3 threads min. (G1/2) FP OP 44 (3) PT 44 Two, 8.5±0.1 dia. holes Two, 8.5±0.1 dia. holes (3) Two screw caps 8-dia. hard stainless steel plunger Filter 98±0.2 120° 85 45 114±0.8 85 45 85 120° 50±0.2 50±0.2 25 40 25° to 30° 25° to 30° 9 Four, M4 x 10 screws Scraper Filter 14±0.2 5.5 28±0.3 8 46 35 12±0.2 Dog 35 Pitch 12±0.2 30±0.2 Roller Plunger [email protected] Cable drawing hole with 3 threads min. (G1/2) PT 6.8 dia. x 3.7 Stainless steel roller FP OP Cable drawing hole with 3 threads min. (G1/2) Two screw caps PT FP OP 44 (3) Two screw caps 6.8 dia. x 3.7 Stainless steel roller 44 Two, 8.5 ±0.1 dia. holes Filter Two, 8.5 ±0.1 dia. holes (3) 114±0.8 45 85 98±0.2 85 85 50±0.2 25° to 30° 5.5 Filter 14±0.2 28±0.3 8 46 45 50±0.2 25 40 Four, M4 x 10 screws Dog H H Roller Plunger [email protected] Four, 6.5 dia. holes Scraper 46 60.5 68±0.8 10.5 to 11.5 Dog setting range 9 17 30±0.2 60.5 68±0.8 Two, 6+0.1-dia. holes for positioning Four, M4 x 10 screws 23.5 to 24.5 Dog setting range 9 17 8.5 29.5 to 30.5 Dog setting range 9 17 35 Four, M4 x 10 screws 46 60.5 68±0.8 8.5 16.5 to 17.5 Dog setting range 9 17 Scraper 35 Pitch 12±0.2 Dog 12±0.2 60.5 68±0.8 25° to 30° 9 Scraper 30±0.2 H 30±0.2 Dog H Note: Unless otherwise indicated, a tolerance of ±0.4 mm applies to all dimensions. Model Operating characteristics [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] Operating force Release force Pretravel Overtravel *1 Movement Differential OF max. RF min. PT max. OT min. MD max. 14.71 N 4.90 N 1.5 mm (3.5 mm) 0.5 mm 14.71 N 4.90 N 1.5 mm (3.5 mm) 0.5 mm 14.71 N 4.90 N 1.5 mm (3.5 mm) 0.5 mm 14.71 N 4.90 N 1.5 mm (3.5 mm) 0.5 mm Operating Position Free Position *1 OP FP max. 32±0.4 mm (33 mm) 19±0.4 mm (20 mm) 26±0.4 mm (27 mm) 13±0.4 mm (14 mm) Note: The operating characteristic values apply to a single switch. *1 The OT and FP values are reference values. The actual model numbers of each of the above VB models have a figure 2 to 6, which indicate the number of plungers. Number of plungers Size H (mm) 2 58 3 70 4 82 5, 6 *2 106 *2 When five plungers are mounted in series, no outer actuator will be provided. 3 VB Safety Precautions Refer to Safety Precautions for All Limit Switches. Precautions for Safe Use Connection • Be sure to connect a fuse with a breaking current 1.5 to 2 times larger than the rated current to the Switch in series in order to protect the Switch from damage due to short-circuiting. • If the VB is used for EN ratings, use a gI or gG 10-A fuse approved by IEC269. Operation Make sure the notch of the plunger is not pressed into the scraper when operating the VB Multiple Limit Switch, otherwise chips or dust may penetrate into the VB Multiple Limit Switch. 3. Apply a torque of 5.88 to 6.86 N·m to tighten each mounting bolt of the casing if the mounting bolt is an Allen-head bolt that is M6 in size. Apply a torque of 8.04 to 9.22 N·m instead if the mounting bolt is an Allen-head bolt that is M8 in size. Mounting Holes With a Flange Switch Box Two, 8.5-dia. or M8 mounting holes Four, 6.5-dia. or M6 mounting holes 50±0.2 14±0.2 28±0.3 Sealing • The switch box and cover are made of die-cast aluminum and the mounting part of the Switch is covered with a seal cap, and ensure a sealing performance of more than 98×103 Pa for the VB Multiple Limit Switch. The filter on the side of the head prevents oil and water from penetrating into the interior of the VB Multiple Limit Switch while preventing the internal pressure of the VB Multiple Limit Switch from rising when the plunger is pressed. The seal scraper on the tip of the actuator prevents chips and dust from penetrating into the moving parts of the VB Multiple Limit Switch. 15±0.2 13±0.2 98±0.2 −0.05 Two, 6 dia. /−0.15 protruding positions Without a Flange Switch Box Two, 8.5-dia. or M8 mounting holes 50±0.2 Wiring Connect a cable with a thickness of 0.75 mm2 to the VB Multiple Limit Switch through the M3 round solderless terminals with insulation covers. Operating plunger Cap Movable plunger Seal cap Seal scraper Switch box Dimensions of Round Solderless Terminal L l Cap screw Cover Seal gasket O ring Standard switch • Apply extra tightening to the cap screw on the conduit. • In order to protect the plunger from abrasion and prolong its service life, apply a small amount of grease to the plunger and dog or cam that come into contact with the plunger. (Molybdenum disulfide grease is recommended.) dz dia.: D dia.: B: L: F: l: 3.2 1.9 5.2 16.4 5.8 8.0 (mm) F D dia. B dZ dia. Wiring (Ground Terminal Models) SC connector Built-in switch Appropriate Tightening Torque 1. Tighten each cover mounting screw to a torque of 1.18 to 1.37 N·m. 2. Tighten each switch terminal screw to a torque of 0.19 to 0.29 N·m if the mounting screw is M3 in size. Ground terminal VB Consult your OMRON representative for details on models with 3 to 6 plungers. Others • Carefully connect a conduit to each conduit hole and apply a seal or tape to seal the conduit hole so that cuttings or other materials will not penetrate through the conduit hole. • Use the SC Connector. Consult your OMRON representative for details on SC Connectors. • Make sure that the position of the actuator that is traveling does not exceed the overtravel (OT) position. Make sure that the operating stroke is 70% to 100% of the specified OT distance. Be sure to wire each solderless terminal correctly with a screw as shown below. Solderless terminal Correct Incorrect Terminal screw 4 Read and Understand This Catalog Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. LIMITATIONS OF LIABILITY OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR. Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: • Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog. • Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. • Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. PROGRAMMABLE PRODUCTS OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof. Disclaimers CHANGE IN SPECIFICATIONS Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products. DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. PERFORMANCE DATA Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability. ERRORS AND OMISSIONS The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions. 2009.11 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2009 All Right Reserved.